D-Cycloserine Augmentation of Exposure Therapy for Post-Traumatic Stress Disorder: A Pilot Randomized Clinical Trial
Identifieur interne : 001E29 ( Main/Exploration ); précédent : 001E28; suivant : 001E30D-Cycloserine Augmentation of Exposure Therapy for Post-Traumatic Stress Disorder: A Pilot Randomized Clinical Trial
Auteurs : Joann Difede [États-Unis] ; Judith Cukor [États-Unis] ; Katarzyna Wyka [États-Unis] ; Megan Olden [États-Unis] ; Hunter Hoffman [États-Unis] ; Francis S. Lee [États-Unis] ; Margaret Altemus [États-Unis]Source :
- Neuropsychopharmacology [ 0893-133X ] ; 2013.
Abstract
Viewing post-traumatic stress disorder (PTSD) as a disorder of emotional learning, this study used a cognitive enhancer synergistically with virtual reality exposure (VRE) therapy for the treatment of PTSD. The main objective was to determine if a novel pharmacotherapy,
Url:
DOI: 10.1038/npp.2013.317
PubMed: 24217129
PubMed Central: 3957110
Affiliations:
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Le document en format XML
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-Cycloserine Augmentation of Exposure Therapy for Post-Traumatic Stress Disorder: A Pilot Randomized Clinical Trial</title>
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-Cycloserine Augmentation of Exposure Therapy for Post-Traumatic Stress Disorder: A Pilot Randomized Clinical Trial</title>
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<front><div type="abstract" xml:lang="en"><p>Viewing post-traumatic stress disorder (PTSD) as a disorder of emotional learning, this study used a cognitive enhancer synergistically with virtual reality exposure (VRE) therapy for the treatment of PTSD. The main objective was to determine if a novel pharmacotherapy, <sc>D</sc>
-cycloserine (DCS), enhanced the efficacy of the psychotherapy. Pre-clinical studies suggest that when fear extinction occurs during DCS administration, neuroplasticity may be enhanced. VRE therapy is a particularly promising format to test the hypothesis that DCS enhances extinction learning, as sensory fear cues are standardized across patients. In a pilot randomized, double-blind, placebo-controlled trial, 100 mg of DCS or placebo was administered 90 min before each weekly VRE session, to ensure peak plasma concentrations during the sessions in 25 patients with chronic PTSD. The primary outcome measure was the Clinician Administered PTSD Scale (CAPS). Secondary outcome measures included the Beck Depression Inventory-II and the State-Trait Anger Expression Inventory-2. Assessments occurred at pre-treatment, following sessions 3, 6, 10, post-treatment, and at 6 months. The difference in CAPS between the VRE-DCS (<italic>n</italic>
=13) and VRE-placebo (<italic>n</italic>
=12) groups increased over time beginning at 6 weeks, with medium to large between-group effect sizes immediately post-treatment and 6 months later (<italic>d</italic>
=0.68 and <italic>d</italic>
=1.13, respectively). A similar pattern was observed for depression, anger expression, and sleep. PTSD remission rates were significantly greater for the VRE-DCS group (46% <italic>vs</italic>
8% at post-treatment; 69% <italic>vs</italic>
17% at 6 months). Patients in the VRE-DCS group showed earlier and greater improvement in PTSD symptoms compared with the VRE-placebo group. These results suggest a promising new treatment for PTSD.</p>
</div>
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